547_num_provinces.go

package main

// There are n cities. Some of them are connected, while some are not. If city a is connected directly with city b, and city b is connected directly with city c, then city a is connected indirectly with city c.

// A province is a group of directly or indirectly connected cities and no other cities outside of the group.

// You are given an n x n matrix isConnected where isConnected[i][j] = 1 if the ith city and the jth city are directly connected, and isConnected[i][j] = 0 otherwise.

// Return the total number of provinces.

// func numberProvinces([][]int) int {

// }

// func main () {
// 	arr := [][]int{
// 		{1,1,0},
// 		{1,1,0},
// 		{0,0,1},
// 	}
//  numberProvinces(arr)
// }